Driving connection for electric locomotives.



N. W. STORER.

DRIVING CONNECTION FOR ELECTRIC LOCOMOTIVES.

APPLIGATION FILED SEPT. 18,1911.

1,059,008. 7 v Patented Apr. 5,1913.

1E1 15% J- A WITNESSES:

AITTORNEY NORMAN W. STORER OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR 'IO WESTINGHOUSE ELECTRIC AND MANUFACTURING GOMPANY A CORPORATION OF PENNSYLVANIA.

DRIVING CONNECTION FOR- ELECTRIG LOCOMOTIVES.

Specification of Letters I'atent.

PatentedApr. 15,1913.

Application filed September 18, 1911. Serial N 0. 649,980.

To on whom it may concern: v

Be it known that I, NORMAN W. STORER, a citizen of the United States, and a resident of Pittsburgh, in the county of Alleghe-ny and State of Pennsylvania, have in-' vented a new and usefullmprovement in Driving Connections for Electric Locomotives, of which the following is a specification. w

My invention relates, to electric locomotives and other railway vehicles and it has for. its object to provide an improved driving vconnection between the electric motors and the driving wheels of the vehicle.

In Patent No. 993,568, granted May 30,1911, and-assigned to the estinghouse Electric 8: Manufacturing Company, upon an application filed by me, is illustrated and described a resilient connection between an electric mo tor and the truck wheels or drivers of an electric locomotive or car that is specially adapted for use with very large motors which are connected by reducing gearing located at the respective ends of the motor.

In mv present inventiomit is my aim to provi e a drive of the same general character that shall possess-all 'of the advantages which pertain'to the device of my previous patent and the additional advantage of avoiding vibration, as hereinafter explained and relieving-the main driving springs an the spring-connections from strains to which they are constantly subjected iniservice, as, for example, when the locomotive or car is 5 started under adverse conditions.

In carrying out my invention, 1 utilize a clutch connection between the driving rim and the driving hub of the main gears which is so designed and set as to permit relative rotation between the twoparts when the load exceeds a redetermined amount.

Figure 1 of tie accompanying drawings is a sectional elevation of a portion of an electric locomotive embodying the driving connection of my invention. Fig. 2 is an end view of the parts shown in Fig. 1, and Fig. 3 is a sectional view, n a larger scale,

of the gear clutch of'the 0t er figures.

Referring. to the drawings, the stator 1 0 of an electric motor is provided with bearings 2 in'which a sleeve or quill 3 is rotatively su ported. A driving ar'le 4 of a truck or ocomotive extends loosely through the sleeve or quill 3 nIlClf-lS provided with driving wheels 5, in {the usnalg-inanner. The

. arms-2O and the'spokes 19.

stator l of the electric motor. is provided with end frames-6 having bearings 7 in which the motor shaft 8, on which the motor armature 9 is mounted, is rotatively supported. Pinions 9 are located atthe i'eco spective ends of the motor s'hafit and mesh with gear wheels 10, which are mounted on the ends of the sleeves or'quill 3. As shown in Fig. 3, the gear wheels 10 comprise rim members 11, each having 5311 as inwardly extending annular rojectionlQ which forms one member of adiivingclutch, the opposing parts of which are constituted by the hub member 13 of the gear and a ring 14 between which the projection 12 is secured. The ring 14: and the opposite sur face of the hub member 13 are lined with leather or other suitable material in'the form of rings 15. The ring 14 is clamped in position by a plurality oi bolts-16 which act through springs 17 to draw the memhers 13 and 14 toward each other to firmly grip the projection 12 of the member 11.

The hub member-13 is provided with a serics of projections 18 which extend between to the spokes 19 of the wheel 5 and to which radial driving arms 20 are secured by bolts 21. Helical springs 22 are interposed between the outer ends of the radial driving Resilient drivingconnections of the general class. above described show a tendency to vibrate or oscillate with increasing amplitude when the wheels slip, thus causin the springs to be completely compressed an to a heavy blow to be delivered to the wheel spokes by the radial driving arms. One of the principal advantages of my present invention lies in the fact that the clutch, when properly adjusted, slips before the maxias mum strains are imposed on the springs and before the arms strike. lnother words, the clutch tends vto damp out or prevent the vibration above referred to and to materially change the character. and operation of the too entire driving connection;

In order to produce the aforesaid results to the best advantage, theclutch member should be located in the driving connections as close to the driving springs as possible.

While I have shown only one end of the motor. and the wheel axle which I have described, both ends will be substantially alike,

as far as the driving connections are concerned.

iio

' hers, and motor-driven pinions meshing withends of the sleeve or 10 The'structural details oithe iirivin connection illustrated may be varied with n the spirit and scope of my invent-ion.

I claim a my invention: 1. A driving connectlon for railway ve hicles comprising wheels and an axle there for, a sleeve or quill surrounding the axle, gear hub memberssecured to the respective qui1l,. inter osed springs-between the wheel spokes an the gear hub members, gear rim members, friction clutchconnected 'to the gear hub memthe gear rims. 2. ,A dri'vin hic'les comprising wheels andan axle there'- axle, gear hub members secured to the re for, a sleeve or tions between the wheel spokesand the gear hub members, gear rim gear IlIIlS. I I

3. A dI'1V1I1g connection for electric rallway vehicles comprising wheels and an axle therefor, a sleeve or/quill surrounding the connection for railway we quill surrounding the axle, gear hub members secured to the respective 20, d f the sleeve or'quill, yielding connecsleeve or members friction clutch connected to the gear hub members,. and motor driven pinions meshing with the Witnesses spec'tive ends of the sleeve or q'uill and. hav ing projections which extend outwardly between the spokes of the wheels, radial arms secured to the "projections springs inter posed between the ends of the arms and the wheel spokes," gear rim members mounted on the gear hub members and. connected l" thereto-by friction clutch connections,

an electric driving motor having a rotatable armature, a shaft and mions mounted on the respective ends of t emotor shaft and meshing with the gear rim members.

tember, 1911.

NORMAN w. STORER.

JOHN L. Cnousn, B. B. Hume. 

